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Measurement of the photon structure function F2(gamma) with the L3 detector at LEP.

The L3 collaboration Achard, P. ; Adriani, O. ; Aguilar-Benitez, M. ; et al.
Phys.Lett.B 622 (2005) 249-264, 2005.
Inspire Record 687095 DOI 10.17182/hepdata.48675

The e+e- -> e+e- hadrons reaction, where one of the two electrons is detected in a low polar-angle calorimeter, is analysed in order to measure the hadronic photon structure function F2gamma . The full high-energy and high-luminosity data set, collected with the L3 detector at centre-of-mass energies 189-209GeV, corresponding to an integrated luminosity of 608/pb is used. The Q^2 range 11-34GeV^2 and the x range 0.006-0.556 are considered. The data are compared with recent parton density functions.

16 data tables
Table 1

Cross sections DELTA(SIG)/DELTA(X) in the Q**2 range 11 TO 14 GeV**2.

Table 2

Cross sections DELTA(SIG)/DELTA(X) in the Q**2 range 14 TO 20 GeV**2.

Table 3

Cross sections DELTA(SIG)/DELTA(X) in the Q**2 range 20 TO 34 GeV**2.

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rivet Analysis
Measurement of the inclusive production of neutral pions and charged particles on the Z0 resonance

The L3 collaboration Adeva, B. ; Adriani, O. ; Aguilar-Benitez, M. ; et al.
Phys.Lett.B 259 (1991) 199-208, 1991.
Inspire Record 314407 DOI 10.17182/hepdata.29468

We present a study of the inclusive production of neutral pions and charged particles from 112 000 hadronic Z 0 decays. The measured inclusive momentum distributions can be reproduced by parton shower Monte Carlo programs and also by an analytical QCD calculation. Comparing our results to e + e − data between √ s = 9 and 91 GeV, we findfind that the evolution of the spectra with center of mass energy is consistent with the QCD predictions.

6 data tables
Table 1

No description provided.

Table 2

Error is dominated by systematic uncertainties.

Table 3

No description provided.

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